Received:
23
August
2010
Accepted:
14
December
2010
Published online:
3
February
2011

Abstract

A model of the DN interaction is presented which is developed in close analogy to the meson-exchange N potential of the Jülich group utilizing SU(4) symmetry constraints. The main ingredients of the interaction are provided by vector meson ( , exchange and higher-order box diagrams involving D*N , D , and D* intermediate states. The coupling of DN to the and channels is taken into account. The interaction model generates the (2595) -resonance dynamically as a DN quasi-bound state. Results for DN total and differential cross sections are presented and compared with predictions of two interaction models that are based on the leading-order Weinberg-Tomozawa term. Some features of the (2595) -resonance are discussed and the role of the near-by threshold is emphasized. Selected predictions of the orginal N model are reported too. Specifically, it is pointed out that the model generates two poles in the partial wave corresponding to the (1405) -resonance.